16v kr is pretty straightforward, abf 2l isa bit more difficult due to the tall block and getting a manifold to suit, you could go 2l 9a short block which is the same as a kr conversion but greater capacity.
use the search function and do a bit of research of what you'll need, but if 'its your mums' why are you even bothering?
unless of course your mum happens to be michelle mouton or fabria pons
